TeSys LR9D electronic overload relay, 32A/690V, thermal setting range 6.4-32A, selectable tripping class 5-10-20-30, for protection of 3-phase motors 3-15kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, buttons for test, stop and reset as well as manual-automatic reset selector, dipswitches for tripping class selection, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D09-D38. Mounting on DIN rail or screw fixing, separated from contactor, with use of the terminal block LAD7B205 (to be ordered separately). Multi-standards certified (IEC, UL, CSA, CCC), Green Premium compliant (RoHs/Reach).
| Range | TeSys |
|---|---|
| Product name | TeSys LRD |
| Device short name | LR9D |
| product or component type | Electronic thermal overload relay |
| relay application | Motor protection |
| Product compatibility | LC1D09 LC1D25 LC1D32 LC1D38 LC1D12 LC1D18 |
| Thermal overload class | Class 5…30 |
| Thermal protection adjustment range | 6.4…32 A |
| maximum power consumption in W | 300 mW |
| Mounting support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| [Ue] rated operational voltage | 690 V for power circuit 660 V for signalling circuit |
|---|---|
| [Ui] rated insulation voltage | Power circuit: 1000 V Signalling circuit: 690 V |
| Tripping threshold | 1.25 In conforming to IEC 60947-4-1 |
| Control type | Red push-button: stop and manual reset White 2 microswitches: adjustable trip class Red knob: automatic reset Grey dial: full-load current adjustment |
| Time range | 1.5…4 min – automatic reset time |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Associated fuse rating | 5 A gG for signalling circuit 5 A BS for signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Phase failure sensitivity | Phase difference > 40% 3 s conforming to IEC 60947-4-1 |
| Electromagnetic compatibility | Surge withstand: 2 kV common mode conforming to IEC 61000-4-5 Resistance to electrostatic discharge: 8 kV conforming to IEC 61000-4-2 Immunity to radiated radio-electrical interference: 10 V/m conforming to IEC 61000-4-3 Immunity to fast transients: 2 kV conforming to IEC 61000-4-4 |
| Connections – terminals | Control circuit: screw clamp terminals 1 cable 2.5 mm² – cable stiffness: solid or flexible – without cable end Power circuit: screw clamp terminals 1 cable 16 mm² – cable stiffness: solid or flexible – without cable end |
| Tightening torque | Control circuit: 0.8 N.m on screw clamp terminals Power circuit: 3.1 N.m on screw clamp terminals |
| Height | 72.5 mm |
| Width | 45 mm |
| Depth | 79.9 mm |
| net weight | 0.18 kg |
| Standards | EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5 |
|---|---|
| Product certifications | IECEE CB Scheme UL CSA CCC |
| IP degree of protection | IP20 front face conforming to IEC 60529 |
| Ambient air temperature for operation | -25…70 °C conforming to IEC 60255-8 |
| ambient air temperature for storage | -55…80 °C |
| Operating altitude | 2000 m without derating |
| Mechanical robustness | Vibrations 10…150 Hz: 6 Gn conforming to IEC 60068-2-6 Shocks 11 ms: 15 gn conforming to IEC 60068-2-7 |
| Dielectric strength | 6 kV 50 Hz conforming to IEC 60255-5 |
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